This video illustrate how to throw and carve a double walled pottery vase. Here are the following steps.Step 1: First of all take a potters wheel.Step 2: Now take clay and put it on the wheel and rotate the wheel.Step 3: Make inner and outer partition and slowly shape the inner clay into long vessel shape.Step 4: Now take the outer clay and shape it into vessel, now join the neck of this vessel to the inner vessel and shape it into a vase.Step 5: After the pot has half dried cut the outer boundary into geometrical shapes.that's it.